Canada-U.S. trade war: How did two neighbours become rivals?

Canada and the U.S. are locked in a trade war. How did two friendly neighbours become rivals, and can their relationship be repaired? National Posts Jordan Gowling joins Dave Breakenridge to talk about the ongoing trade war between Canada and the U.S., and what it may take to get us out of it. Learn more about your ad choices. Visit megaphone.fm/adchoices